Apparatus for controlling the gas-supply, igniting, and extinguishing gas-burners



L. RADET.

APPARATUS FOR CONTROLLING THE'GAS SUPPLY, IGNITING, AND EXTINGUISHING GAS BURNERS.

' APPLICATION FILED JUNE 12, I919- 1 389 592, Patented June. 7, 19211.

2 SHEETS-SHEET 1.

L. RADET.

APPARATUS FOR CONTROLLING THE GAS SUPPLY, IGNITING, AND EXTINGUISHING GAS BURNERS.

' APPLICATION FILED JUNE 12, I919.

1 386 592, Patented June 7, 1921.

Z SHEETS-SHEET 2.

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Ln'oN RADET, or PARIS, FRANCE.

APPARATUS FOR CONTROLLING THE GAS-SUPPLY, IGNITING, AND EXTINGTlISI-IING GAS-BURNERS.

This invention relates to apparatus for the automatic ignition or extinction of gas jets at predetermined times. p

The apparatus according to this invention consists essentially of a mechanism at tached to the distributing mechanism for the gas and of a particular igniting device as hereinafter described, and applied in combination. The invention is illustrated in the accompanying drawings as follows Figure 1 shows a front elevation on an enlarged scale taken in the plane of the dis tributer, that is to say with the distributor removed. 7

Fig. 2 shows a horizontal section on the axis of the mechanism.

Fig. 3 shows a front view of the dis tributer.

Fi 4 shows a vertical section on the line rection to that shown in Fig. 1, that is to say, looking toward the ignition bolt and its stopping piece.

Fig. 5 shows a side view in elevation.

Fig. 6 shows a vertical section on the line BB of Fig. 2.

Figs. 7 to 12 are diagrams on .a reduced scale indicating the diiferent phases of the working. In these figures the lower part is a section on the line C-C of Fig. 2, and the upper part is a front elevation from the same point of view of the bolt and its stop-- ping piece.

Fig. 13 shows the construction of the fr1ction device. I 7 V The apparatus ,forming the object of this invention comprises a mechanism for the distribution of gas, and an ignitirigmecha after.

present invention and is therefore not shown 111 the accompanylng drawing.

Specification of Letters Patent. 1 3116111 661 J 11118 7, 1921. Application filed June 12, 1919. Serial No. 303,780. 7

The gear wheel 1 receives its motion from the clockwork or other mechanism. It is keyed on the axle 15 passing through the block 2 of the apparatus.

The arrangement for the distribution of the gas comprises the union 3 delivering the gas to the pipe 4 which discharges in the semi-circular slot 5 formed in the smooth face of the block. In this face moreover are pierced the holes 6 and 9 as shown in the drawing, and in such a manner that they can be put into communication with one another and with the slot 5 by adistri'buter or rotary piece which will be described here- The orifice 6 connects with a channel which having its exit at the periphery of the body 2 is connected to the pipe 7 T which leads to the ignition jet 8. The orifice 9 connects to a pipe 10 passing to the union ll whichis connected to the main burner. Against the smooth face 12 abuts the distributer or rotary piece 13 comprising a disk keyed upon the axle 15 and having formed in it a semi-circular groove 14, 3;

the curvature of which corresponds to that r of the slot 5 in the block and to the distance a ballrace 20 upon which the said wheel.

rests. In this manner the rotation of this wheel is kept very easy inspite of the grip .3

washer 16 for the purpose of insuring the caused by the screw 17 and the spring 1 contact of thepart 13 with the smooth surface 12.

The ignition device is constructed as follows Beyond the wheel 1 the axle 15 carries a cylinder 24 within which there is coiled a spring 25 attached to the said cylinder at its outer end and at its inner end tothe f axle 15. A rough friction piece 26 mount-' ed freely by means of the screw 28 on the end of the axle .15 but independent of this latter, rests upon the cylinder 2 1 and is united to the latter for the rotation by means of the stud 27 engaging. in a hole ierced in the bottom of this cylinder,

pon the axle 15 between the cylinder 24 and the wheel 1 there is keyed an eccentric 23, the strap of which is provided with a prolongation 22 forming av bolt and which, traversing a corresponding slot in the said cylinder 24, extends its end opposite to the catches 29 29 29", 29 of a crown 29 iixed uponthe body 2 of the apparatus, in the same plane as the bolt 22. The course of the bolt by reason of the eccentricity oithe disk 23 is such that the bolt normally strikes against the projections of the crown 29 and can free itself from them by moving back-- ward. It will be seen that ii there be imparted to the axle 15 a rotary mction,-tlie bolt 22 striking against one of the catches of the fixed crown 29, will prevent the cylinder 24- from turning, and consequently the friction piece 26 remains stationary while the spring 25 coils by reason of the rotation of the axle 15.

But at the same time as this axle 15 rotates, the eccentric 25 also turns and causes the withdrawalof the bolt 22, which latter releasing itself from the catch against which it passes, liberates the cylinder 21-, which latter, under the action of its spring is rapidly moved together with the friction piece 26. During this movement the strap of the bolt turns upon the eccentric 23 and therefore the bolt 22 being pushed outward, strikes against the following catch of the crown 29 and remains there, until by the continuation of the rotation of the axle 15 the same motions are repeated.

Opposite to the friction piece 26 there is arranged screwed into the arm 39 of the body of the apparatus aholder 32 formed of a tube in which is placed a rod of ferrocerium 33, which is kept in contact with the part 26 by suitable means such as the rod 37 upon which there presses the spring 36, the free end whereof engages in a slot 35 of the head 34 of the holder The entire ignition mechanism is inclosed in a casing31 which only leaves uncovered a portion of the catch at its point of contact with the rod of ferro-cerium and which forms a chamber in which the gas coming through the space 8 mixes with air so as to cause it to be more inflammable.

The ignition jet8, the lower part of which alone is shown in the drawing is formed by a tube closed at its ends and perforated with little holes. llt terminates underneath in the mixing chamber 31 close to the friction catch and rises above it as far as the vicinity of the burner which is to be lighted. The ignition jet is provided with the gas supply tube 7 in communication, as has been surface are obturated by the unperforated part of the slide 13 and the bolt 22 rests upon the first projection 29? of the ring 29/ At the moment when the ignition is to be effected the prime mover actuates the toothed wheel 1 and this latter commencing to turn, turns with it the axle 15 in the direction indicated by the arrow. During this movement owing to the shape of the eccentric, the bolt 22 is moved backward, and there arrives a moment when escaping from the'projection 29 it is impelled by the coiled spring and strikes against the following projection 29, (Fig. 8), as has been indicated above. During this motion the part 13 has meanwhile uncovered the orifice 6 and the gas passing through the groove 14 of the part 13 flows through the tube 7 and the tube 8 into the mixing chant ber 31 in which atthat instant there is being produced a succession of sparks resulting from the friction upon the ferro-cerium o'l.

the striker 26 vigorously impelled by'the pring. This succession of sparks ignites the gas mixture and consequently the gas escaping from the holes of the ignition tube 8.

V The axle 15 continuing its rotation, the slide 13 then uncovers the orifice 9 of the supply pipe'of the burner and in conse quence of the repetition of the actions already explained the bolt 22 escapes from the projection 29 of the part 29 and strikes against the following projection 29, as shown in Fig. 9. The second succession of sparks is thereby produced and the gas. which is then arriving at the burner is ignited in contact with the flame of the ignition tube, consequently without any explosion, which has the advantage of prc-,

venting damage to the mantles.

The continuation o'f'the motion'o-f rotation of the axle 15 causes the escape of the bolt 22 from-the projection 29 and its striking against the following projection 29 and consequently the production of a third succession of sparks as shown in Fig. 10, the orifices 6 and 9 meanwhile remaining uncovered. A fourth succession of sparks is then produced in the same conditions, when the bolt 22 passes from the projection 29 to the original projection 29 (Fig. 11). .It should here be remarked that on the production of the successive sets of sparks the orifice 6 remains uncovered and consequently the ignition projection 8 remains supplied with gas. The ignition of this gas jet and consequently of the burner is therefore assured, notwithstanding any accidental miss which may be produced.

In the continuation of the movement the bolt 22 attains its most forward position at the part 29 The axle 15 then stops as well as the slide 13, which at this moment has covered the orifice 6 while leaving uncovered the orifice 9, (Fig. 12), the gas consequently ceases to supply the ignition projection which goes out, but the burner remains supplied and therefore burns during the whole period of the lighting. At the time selected for the extinguishing, the clockwork causes the release of the wheel 1 which turns sufficiently to cause the slide 13 to close the orifice 9, which supplies the burner, and this latter is then extinguished. During this notation the bolt 22 is slightly drawn back without quitting the part 29 (Fig. 7), and all the organs resume their original position to commence a new ignition. The rough striking part, the friction of which upon the ferro-cerium causes the succession of sparks, may be of any suitable construction. Nevertheless it is preferably formed as indicated in Fig. 13 by means of a coiled band ll projecting upon the periphery of a steel disk; thisband has teeth out in it in the form of a ratchet and it acts in such a manner that when the striker has accomplished one turn, all the partsof the block of ferro-cerium have been successively struck. This arrangement has for one object to detach as large pieces of metal as possible, and to prevent the polishing of the ferro-cerium surface because such polishing 4ojwould be detrimental to the action of the striker.

What I claim is 1. Apparatus for controlling gas supp-1y,

' igniting, and extinguishing gas lamps, comprising in combination: a rotatable shaft mechanism on said shaft for opening and closing the gas supply to a pilot jet and to a main burner respectively; a spring drum on said shaft having a roughened outer surface; a stationary ring surrounding said shaft; internal projections on said ring; an eccentric on said shaft; a bolt in operative connection with said eccentric and passing through the said spring drum, so adjusted with regard to the stationary ring as to alternately stop and release the spring drum during the rotation of the shaft; and a spring-impelled sparking rod in contact with the roughened surface of the drum.

2. Apparatus for controlling gas supply, igniting, and extinguishing gas lamps, comprising in combination; a rotatable shaft, a stationary block surrounding said shaft, a. pair of gas channels in said block each connected to a union at one end, and terminating at the other in an orifice on the face of the block; a revolving obturator keyed on the rotatable shaft and in contact with the stationary block; a semi-circular channel in said obturator adapted to make contact with the orifices of the gas supply channels; and means for igniting the pilot jet.

3. Apparatus for controlling gas supply, igniting and extinguishing gas lamps, comprising in combination; a rotatable shaft, a stationary block surrounding said shaft provided with gas channels for, the pilot jet and main burner gas supply respectively, a rotary distributer keyed on said shaft adapted consecutively to admit gas first to the pilot jet then to the main burner then to shut off the supply to the pilot jet and finally to shut off the supply to the main burner; and an igniting mechanism comprising a striking device on said shaft, a spring secured at one end to the shaft and at the contact with the roughened surface of the striking device.

In testimony whereof I sign my name to the accompanying specification.

LEON RADET.

Witnesses: V

HENRI BLoNIN, JOHN F. SIMoNs. 

